# CVE-2025-11375: GO-2025-4082 - Consul event endpoint is vulnerable to denial of service in github.com/hashicorp/consul

Source: https://junglewise.ai/threats/cve-2025-11375-consul-event-endpoint-is-vulnerable-to-denial-of-service  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-10-28  
License: CC BY 4.0 with a link back

CVE-2025-11375 · Severity: medium · CVSS 6.5 · Published 2025-10-28

Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) due to lack of maximum value on the Content Length header. This vulnerability, CVE-2025-11375, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12.

Technologies: [github.com/hashicorp/consul (Go)](https://junglewise.ai/threats/technologies/github-com-hashicorp-consul), [HashiCorp Consul](https://junglewise.ai/threats/technologies/consul). Vendors: [Go](https://junglewise.ai/threats/vendors/go), [HashiCorp](https://junglewise.ai/threats/vendors/hashicorp).

## Quick answers

**Is CVE-2025-11375 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-11375 being exploited in the wild.

**How severe is CVE-2025-11375?** Medium severity, with a CVSS score of 6.5, published 28 October 2025.

**Which products and versions are affected?** github.com/hashicorp/consul (Go) SEMVER:introduced=0,fixed=1.22.0.

**Is there a fix for CVE-2025-11375?** Yes. github.com/hashicorp/consul (Go): upgrade to 1.22.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-11375?** Check whether you run github.com/hashicorp/consul (Go) or HashiCorp Consul at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/hashicorp/consul (Go): upgrade to 1.22.0 or later

  ```sh
  go get github.com/hashicorp/consul@v1.22.0
  ```


## Affected products

- github.com/hashicorp/consul (Go) SEMVER:introduced=0,fixed=1.22.0
- HashiCorp Consul

## Identifiers

- CVE-2025-11375
- GHSA-qh7p-pfq3-677h
- GO-2025-4082

## Related threats

- [HashiCorp Consul authorization bypass in health check registration](https://junglewise.ai/threats/cve-2026-115804-hashicorp-consul-and-consul-enterprise-are-vulnerable-to-an)
- [HashiCorp Consul authorization bypass in service mesh leaf certificate API](https://junglewise.ai/threats/cve-2026-105765-hashicorp-consul-and-consul-enterprise-1-17-0-up-to-2-0-4-are)
- [HashiCorp Consul HTTP API denial of service](https://junglewise.ai/threats/cve-2026-105626-hashicorp-consul-and-consul-enterprise-are-vulnerable-to-a)
- [HashiCorp Consul authorization bypass in service mesh proxy registration](https://junglewise.ai/threats/cve-2026-105608-hashicorp-consul-and-consul-enterprise-are-vulnerable-to-an)
- [HashiCorp Consul authorization bypass in Connect service mesh](https://junglewise.ai/threats/cve-2026-88021-hashicorp-consul-authorization-bypass-in-connect-service-mesh)